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反循环无泵鑽進法是苏联卓越的鑽探先進經驗之一,首創于頓巴斯煤田勘探区,当时对提高該探区的松軟煤心采取率和改善煤心質量,都收到了良好效果。1954年以來分別经地貿部304、321、641、503、537、532、509等隊先后試用推广,在采取松軟脆碎含磷、銅、鉛鋅、粘土等的礦心方面,都取得顯著成
The reverse circulation non-pumping method is one of the Soviet Union’s advanced experiences in drilling excellence. It was first created in the exploration area of the Donbas coal field. At that time, good results were achieved in improving the soft coal core rate of the exploration area and improving the quality of the coal core. . Since 1954, the teams of 304, 321, 641, 503, 537, 532 and 509 of the Ministry of Land and Trade have successively tried and promoted, and they have all achieved the use of loose and fragile minerals such as phosphorus, copper, lead, zinc and clay. Significantly